code: def test_setitem_different_type(self, xp, src_type, dst_type):
      a = xp.zeros((2, 3, 4), dtype=dst_type)
      b = testing.shaped_arange((2, 3, 4), xp, src_type)
      with warnings.catch_warnings():
          warnings.simplefilter("ignore", numpy.ComplexWarning)
          a[:] = b
      return a
  
imports: import unittest
  import warnings
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 4 for calling the TestArrayIndex obj's underlying member method code with example usage: obj.test_setitem_different_type(xp, src_type, dst_type) and returns: a